Category: Orchid Doctor

HEATERS: For Emergency in Case Power Fails

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Hy-Lo Salamander burns either kerosene or range-oil; it is an ethylene risk; use kerosene; arrange a temporary vent to the outside; burn as bright a flame as possible. A74-114 Read More

HEATERS: Gas or Propane

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago A gas heater if exclusively methane can be used without venting; propane has up to 0.6% ethylene and needs proper venting A81-1093 Read More

HEATERS: Gas Space Units

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago A small unit providing 22-to-50,000 BTU in which the pilot light activates a small electrical pile which in turn activates a thermostat called Self Generating, or Capillary Tube, is described, to t... Read More

HEATERS: Infra-red New Types

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago They are efficient systems that use either natural gas or propane/butane mix to fire burners and a special pipe emits infrared waves which heat the plant benches, the floor, etc,x and not the air; ... Read More

HEATERS: Kerosene New Types

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago A 9000-BTU-per-hour heater can produce sulfur dioxide levels during overnight use, a principal air pollutant which is "controlled" by the U.S. Environment Protection Agency to prevent injury; venti... Read More

HEATERS: Quartz Electric Type

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago It is satisfactory for greenhouse use but perhaps is not adequate because it affects plants only in its pathway and costs more. A81-1093 Read More

HEATERS: Unvented

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago A heater using natural gas, no shortage of air and a clean burner is satisfactory. A81-266The flame consumes the oxygen in a tight greenhouse and the flame then does not burn properly and fumes beg... Read More

HEATERS: Wood-burning Furnaces

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago In Maine with a possible wind-chill factor of minus 80 dF, a furnace of 125,000 BTU, with hot air, taking a 30inch stick of wood, vented to the outside is described; specifications, names of suppli... Read More

HEATERS: Wood-burning Stove

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago It is apt to emit too much ethylene if it is not properly vented; burning wood is one of the worst sources of ethylene; it is now a crime to burn wood for heating purposes in London. A81-1436 Read More

ACID OR ALKALINE: Changing the Values

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Various means can be used: tufa, a limestone form, can be added to paphiopedilums from limestone cliffs; bark composts acidify with age; peatmoss, pine needles, oak leaves in the mix produce acidit... Read More